Home Mortgage Interest and Qualified Residence Rules

U.S. tax concepts for qualified homes, mortgage interest, home-equity borrowing, Form 1098, debt limits, and proceeds tracing.

Home Mortgage Interest and Qualified Residence Rules connects the property, debt, use, and reporting tests behind the U.S. itemized deduction. Qualified Residence determines whether property can be the main or selected second home. Mortgage Interest Deduction then addresses ownership, secured debt, acquisition use, debt dates, limits, itemizing, points, and refinancing.

Home Equity Loan Interest Deduction applies proceeds tracing and the same-home requirement to home-equity loans and HELOCs. Form 1098 supplies lender-reported evidence but does not decide the deduction.

Review Sequence

QuestionEvidence or guide
Is the property the main or selected second home?Qualified Residence
Is the debt secured and used to buy, build, or improve that home?Mortgage Interest Deduction
Were revolving or lump-sum equity proceeds mixed among uses?Home Equity Loan Interest Deduction
What did the lender report, and are there multiple forms?Form 1098

These pages are educational and do not establish a deduction or filing position. Use current IRS guidance and qualified professional advice for an actual return.

In this section

Choose a subsection first. Deeper term pages live inside each subsection, which keeps large topic hubs readable.

Home Equity Loan Interest Deduction

Interest on a home-equity loan or HELOC may qualify when proceeds buy, build, or substantially improve the same qualified home securing the debt.

Mortgage Interest Deduction

The U.S. mortgage interest deduction can reduce taxable income for qualifying interest on secured debt used to buy, build, or improve a main or second home.

Qualified Residence

A qualified residence is a taxpayer's main home or selected second home that meets U.S. mortgage-interest deduction requirements.

Browse Taxation